Cheap Spirit Airlines flights Denver (DEN) to Portland (PDX)

You’ll find cheap round-trip Spirit Airlines flights from DEN to PDX by sorting your results from “Price (lowest to highest)” on Expedia. Or search for options for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the cheapest months to get away to Portland with Spirit Airlines. You could also find great prices on return and one-way fares in December.

Start searching one to three months ahead of your departure date to score cheaper fares on Spirit Airlines flights from Denver Intl. Airport (DEN) to Portland Intl. Airport (PDX). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Click on the “Nonstop” filter when browsing for direct Spirit Airlines flights from DEN to PDX. It’s also a great way to compare other carriers offering the same nonstop route.

Browse Spirit Airlines’s earliest flights from DEN to PDX by using our “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Spirit Airlines flights from Denver Intl. Airport (DEN) to Portland arrive at Portland Intl. Airport (PDX). This is the main entry point to this city.

A rewarding loyalty program and the opportunity to collect points through Free Spirit are the start of the reasons to jet off from DEN to PDX with Spirit Airlines. Plus, when you sign up to our One Key™ program, you can receive OneKeyCash™* on top of any airline loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making a booking, but your airline may add a charge after that time. For further details about altering your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to update your itinerary without additional costs, check the “Changes included” and “No cancel fee” filters when organizing your trip.